Salt Refractometer with ATC - 0 to 100 PPT Nutrients it’s perfect for noise-sensitive environments

it’s perfect for noise-sensitive environments and extended runtime needs

it provides cleaner and healthier water for drinking

and ventilate home rooms like attics

The daisy chain function can connect up to 60 lights

For RO water filter systems

Salt Refractometer with ATC - 0 to 100 PPT Nutrients it’s perfect for noise-sensitive environmentsSper Scientific portable refractometers work in ambient light with no battery or other power source necessary. Features Automatic Temperature Compensation (ATC), which makes manual temperature corrections unnecessary. Double scale in parts per thousand and specific gravity. Measures salt content in sea water, breeding ponds, or pickling brines and other applications. While the scale is calibrated for sodium chloride, it can also be used for calcium